AUSTRALIAN HYMENOPTERA CHALCIDOIDEA, IX.—GIRAULT. 213 
Deseribed from a female captured by sweeping in the forest, August 2, 1914 (A. P. 
Dodd). 
Habitat: Gordonvale (Cairns), Queensland. 
Type: No. Hy 3207, Queensland Museum, Brisbane, the specimen on a tag; head, 
«caudal tibiw, a fore leg and a middle tibia on a slide. 
GENUS APLATYGERRHUS Girault. 
1. APLATYGERRHUS MAGNIFICUS Girault. Female. Genotype. 
Length, 4.70 mm. 
Dark metallic green, densely punctate but the propodeum shining, only reticulate and 
with a median carina; rather hairy, the eyes also. Posterior coxe metallic bluish; legs fuscous 
except posterior coxe and the black posterior tibiw (middle) and portions of the femora of 
the posterior legs. Wings with a conspicuous, large, subsagittate, smoky area suspended 
from the postmarginal vein and distad, the apex obscurely darkened. Postmarginal vein 
longer than the stigmal, which is long. Antenne 11-jointed, no ring-joint, the club single, 
terminating in a conical projection and embraced by a long lateral extension of the distal 
funicle joint; first funicle joint smaller than the second, which is larger than the pedicel; 
other funicle joints wider than long. Antenne brownish toward tip. Distal funicle joints 
peduneulate. . 
Habitat: Hobart, Tasmania. 
Type: No. I. 1251, South Australian Museum. ‘Tag and slide. 
The genus is characterized by the antennal structure. Later one male and six females 
were found in the same collection. In the male the distal funicle joint has not the long 
projection. 
GeNuS AMEROSTENUS Girault. 
Agreeing tolerably well with Merostenus Walker but the antenne with four ring-joints 
and a 3-jointed club, 13-jointed; flagellum cylindrical, the first two funicle joints subequal, 
longest of the flagellum, each over a half longer than the fourth (distal) funicle joint, which 
is subquadrate. Parapsidal furrows complete; scutellum with a transverse groove before apex. 
Propodeum with a median carina which divides at base, its spiracle round. Postmarginal 
vein nearly as long as the marginal, the stigmal shorter. Pronotum rather large. Abdomen 
long and pointed, conic-ovate, produced beneath near base. ore wings obscurely stained. 
Femora subsimple. Scutellum broadening distad. Mandibles 4-dentate, the inner tooth 
truncate and broad. Hyes naked. 
1. AMEROSTENUS AUSTRALIENSIS Girault. Female; male. Genotype. 
Length, 5.20 mm. ; 
Bright metallic blue-green, the antennz, coxz and femora concolorous, also the tibie 
along proximal half, the remainder of the legs reddish brown. Venation dusky brown. Fore 
wings obscurely stained. Body densely reticulated, the scutellum and parapsides not as rough 
as the scutum. The male measures 4.50 mm. and has the tibie all dark. 
Habitat: Hobart, Tasmania. Reared from wood. 
Type: No. I. 1255, South Australian Museum, one male, three females on a card and 
a slide. 
2. AMEROSTENUS AEREIPES new species. 
Female :—Length, 3 mm. 
The same as australiensis but the wings hyaline, the legs all metallic and dark except 
the pale knees, tips of tibize and tarsi, the scutum and parapsides transversely lineolated, the 
first joint of the funicle is longest but not twice the length of the fourth which is subequal 
to joint 3, both quadrate or else a little wider than long; second funicle joint somewhat shorter 
